TY - BOOK AU - Renken,Robert A. TI - Geology and hydrogeology of the Caribbean Islands aquifer system of the Commonwealth of Puerto Rico and the U.S. Virgin Islands T2 - U.S. Geological Survey professional paper SN - 0607993618 (pbk.) PY - 2002/// CY - Boulder, Colo. PB - U.S. Geological Survey KW - Hydrogeology KW - Puerto Rico KW - Local KW - Aquifers KW - Virgin Islands of the United States N1 - Bibliography: p. 131-139 ER -